how to know what % is done and how long does it take for the computer to finish the model at the average work rate?

I dont know how with linux but you can go to your account (or click on your name) and see the trickles. There are 72 trickles in a standard slab model each at 10802 timesteps. The sulphur cycle model started only very recently has 5 phases instead of 3 so there are 120 trickles.
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Take the sec/TS that BOINC is reporting, divide it by 2, multiply by 6. That will be the number of hours between trickles, and the number of days per phase. Then multiply that by 3 if running hadsm3 4.13, or 5 if running sulphur to get the number of days to complete a model.

That's assuming running 24x7 with no other significant CPU usage from other computer use.

Also, I see you are running Linux. If you are running the BOINC GUI and sulphur, you should be able to go to the work tab to see your total progress through the model. In the Linux BOINC GUI before sulphur, the progress was displayed incorrectly.

At about 10 timesteps per minute running 24/7, the standard 3-phase model takes just over 6 weeks.
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